Salt Lake City Files Lawsuit Against Utah Over SB 240
Salt Lake City officials, led by Mayor Erin Mendenhall, filed a lawsuit against the State of Utah on May 20, 2024, challenging Senate Bill 240. The litigation seeks to overturn the state law, which mandates that municipalities allow the construction of accessory dwelling units (ADUs) in residential zones, arguing the statute infringes on the city’s constitutional right to local land-use authority.
What Is the Basis of the Salt Lake City Lawsuit?
The lawsuit, filed in the Third District Court, claims that SB 240, passed during the 2024 legislative session, creates an unconstitutional mandate that strips local governments of their ability to regulate neighborhood zoning. According to the Office of the Mayor, Salt Lake City asserts that the state is overstepping its bounds by forcing cities to accept specific housing densities regardless of local infrastructure capacity or public input. The city argues that the state’s preemption violates the “local affairs” provision of the Utah Constitution, which traditionally grants municipalities broad discretion over zoning and planning matters.
Why Is SB 240 Controversial?
Senate Bill 240 represents a broader tension between the Utah State Legislature and municipal governments regarding the state’s ongoing housing affordability crisis. Proponents of the bill, including the Utah State Legislature, maintain that state-level intervention is necessary to increase housing supply and prevent cities from using restrictive zoning to block moderate-income housing. Conversely, city officials argue that a “one-size-fits-all” approach ignores the unique needs of urban centers like Salt Lake City, which must balance growth with existing utility infrastructure and neighborhood density goals.
Comparison: Local Control vs. State Mandate
| Feature | State Position (SB 240) | City Position (Lawsuit) |
|---|---|---|
| Zoning Authority | State-level override to increase density. | Constitutional right to local control. |
| Housing Supply | Mandates ADUs to lower costs. | Focuses on infrastructure impacts. |
What Happens Next in the Legal Process?
The case is currently in the discovery phase within the Third District Court. Legal analysts suggest the outcome will hinge on the interpretation of the “local affairs” clause within the Utah Constitution. If the court rules in favor of Salt Lake City, it could set a significant precedent, potentially curbing the legislature’s ability to preempt local land-use ordinances in future sessions. Should the state prevail, it will solidify the legislature’s power to dictate zoning policy at the municipal level across Utah.
Frequently Asked Questions
- What is an ADU? An accessory dwelling unit is a secondary housing unit on a single-family residential lot, such as a backyard cottage or a basement apartment.
- Does this lawsuit affect existing ADUs? No, the lawsuit focuses on the constitutionality of the state mandate forcing cities to alter their zoning codes to allow these units by right.
- What is the next court date? A scheduling conference for the case is expected to be set by the court later this year to establish a timeline for briefs and oral arguments.
Mayor Mendenhall has stated that the city remains committed to increasing housing supply, but insists that such growth must occur through local processes that account for neighborhood-specific needs. The state has yet to file its formal response to the complaint, but legislative leadership has historically defended such measures as essential tools for addressing Utah’s housing shortage.